FreeCalypso > hg > freecalypso-tools

annotate uptools/libcoding/sms_submit.c @ 926:6a0aa8d36d06

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rvinterf backslash escape: introduce libprint The new helper function library named libprint is meant to replace the badly misnamed libg23, and will soon contain functions for printing all of the same kinds of GPF TST packets that are now handled in libg23. However, we are also moving safe_print_trace() from libasync to this new library, and changing it to emit our new backslash escape format.
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 23 May 2023 03:47:46 +0000
parents d1fa771abeb8
children
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1 /*
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2 * This library module implements the function for constructing outgoing
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3 * SMS-SUBMIT PDUs.
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4 */
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5
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6 #include <sys/types.h>
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7 #include <strings.h>
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8
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9 make_sms_submit_pdu(da, pid, dcs, textsrc, textlen, udh, udhl, outbuf)
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10 u_char *da, *textsrc, *udh, *outbuf;
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11 unsigned textlen, udhl;
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12 {
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13 u_char *outp = outbuf;
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14 unsigned addr_field_len;
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15 unsigned udh_octets, udh_chars;
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16 u_char ud7[160];
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17 unsigned udl, udl_octets;
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19 if (udh)
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20 *outp++ = 0x41;
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21 else
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22 *outp++ = 0x01;
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23 *outp++ = 0;
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24 addr_field_len = ((da[0] + 1) >> 1) + 2;
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25 bcopy(da, outp, addr_field_len);
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26 outp += addr_field_len;
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27 *outp++ = pid;
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28 *outp++ = dcs;
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29 if (udh) {
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30 udh_octets = udhl + 1;
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31 udh_chars = (udh_octets * 8 + 6) / 7;
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32 } else {
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33 udh_octets = 0;
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34 udh_chars = 0;
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35 }
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36 udl = udh_chars + textlen;
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37 *outp++ = udl;
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38 udl_octets = (udl * 7 + 7) / 8;
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39 bzero(ud7, 160);
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40 bcopy(textsrc, ud7 + udh_chars, textlen);
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41 gsm7_pack(ud7, outp, udl_octets);
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42 if (udh) {
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43 *outp = udhl;
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44 bcopy(udh, outp + 1, udhl);
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45 }
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46 outp += udl_octets;
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47 return (outp - outbuf);
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48 }